Mauritanian authorities arrested Abdullah al-Senussi, as he arrived on an overnight flight from the Moroccan city of Casablanca (see 1125 GMT).

Al-Senussi has been sought by the International Criminal Court on charges of crimes against humanity. However, Libya's National Transitional Council want to put him on trial, and France is also seeking his extradition, citing his alleged role in the 1989 bombing of an airliner over Niger in which 54 French nationals died.